Battery box and battery

Abstract

The invention provides a battery box and a battery, and the battery box comprises a box body which is provided with an inner bottom wall, and a first inner side wall and a second inner side wall which are connected with the inner bottom wall and are oppositely arranged; the first bracket is detachably arranged on the first inner side wall and is parallel to the inner bottom wall; and the second bracket is detachably arranged on the second inner side wall and is aligned with the first bracket. The first bracket and the second bracket are detachably connected to the first inner side wall and the second inner side wall of the box body, so that the first bracket and the second bracket which are not connected with the battery module can be conveniently detached when the battery module is mounted, and the assembly space occupied by the first bracket and the second bracket is reduced; as many battery modules can be arranged in the space in the battery box body as possible, more batteries can be arranged in the space of the battery system, and therefore the problem that the space utilization rate of the battery system is low is solved.

Description

Technical Field

[0001] The present application relates to the field of battery technology, and in particular to a battery box and a battery. Background Art

[0002] In the related art, when assembling batteries, if a multi-layer battery pack stacking design is adopted, it is usually chosen to first install a fixed frame on the vehicle frame, and then place the independently sealed standard box battery pack on the fixed frame. This requires reserving sufficient assembly space for the installation of the battery pack when installing the fixed frame to ensure that the battery pack can be installed smoothly. However, after the battery pack is installed, only part of these reserved assembly spaces is used to place external cables, water cooling pipes, etc. between the battery packs. There is still a lot of space that is not fully utilized, resulting in a problem of low space utilization of the battery system. Summary of the invention

[0003] The embodiments of the present application provide a battery box and a battery, which are used to improve the technical problem of low space utilization of the battery system in the related art.

[0004] In a first aspect, an embodiment of the present application provides a battery box, comprising:

[0005] The box body comprises an inner bottom wall, and a first inner side wall and a second inner side wall connected to the inner bottom wall and arranged opposite to each other;

[0006] A first bracket is detachably disposed on the first inner side wall and is parallel to the inner bottom wall;

[0007] A second bracket is detachably disposed on the second inner side wall and aligned with the first bracket;

[0008] The first bracket and the second bracket are both configured to support the battery module.

[0009] In some embodiments, the first bracket includes a plurality of first sub-brackets arranged at intervals along a direction parallel to the inner bottom wall; and / or the second bracket includes a plurality of second sub-brackets arranged at intervals along a direction parallel to the inner bottom wall, and the second sub-brackets correspond one-to-one to the first sub-brackets.

[0010] In some of the embodiments, a plurality of first brackets and second brackets are provided in a direction perpendicular to the inner bottom wall, and the number of the first brackets is the same as the number of the second brackets.

[0011] In some of the embodiments, in a direction perpendicular to the inner bottom wall, the first sub-brackets are aligned; and / or the second sub-brackets are aligned.

[0012] In some embodiments, the battery box further comprises:

[0013] The first support portion is disposed on the first inner side wall and connected to the first bracket; and / or the second support portion is disposed on the second inner side wall and connected to the second bracket.

[0014] In some embodiments, the first support portion includes a plurality of first support seats arranged at intervals along a direction parallel to the inner bottom wall, and the number of the first support seats is the same as the number of the first sub-brackets; and / or the second support portion includes a plurality of second support seats arranged at intervals along a direction parallel to the inner bottom wall, and the number of the second support seats is the same as the number of the second sub-brackets.

[0015] In some embodiments, the battery box further comprises:

[0016] A first bottom bracket, disposed at the connection between the inner bottom wall and the first inner side wall;

[0017] The second bottom bracket is arranged at the connection between the inner bottom wall and the second inner side wall and is aligned with the first bottom bracket.

[0018] In a second aspect, an embodiment of the present application provides a battery, comprising the above-mentioned battery box, and also comprising a battery module;

[0019] Two ends of the battery module are connected to the first bracket and the second bracket respectively.

[0020] In some embodiments, the battery module has a first surface, a second surface, a third surface and a fourth surface connected end to end in sequence, and the extension surfaces of the first surface, the second surface, the third surface and the fourth surface intersect with the first inner side wall and the second inner side wall;

[0021] The battery further includes a heat dissipation plate, which is disposed on at least one of the first surface, the second surface, the third surface, and the fourth surface.

[0022] In some of the embodiments, the battery includes a plurality of battery modules, the number of the battery modules corresponds to the number of the first brackets and the number of the second brackets, both ends of each battery module are connected to a first bracket and a second bracket, and the battery also includes thermal conductive adhesive, which is arranged between two adjacent battery modules and contacts the two battery modules respectively.

[0023] In some embodiments, the battery further comprises:

[0024] The connecting member is connected to the plurality of battery modules and is arranged between the first sub-bracket and / or the second sub-bracket of the battery box.

[0025] Beneficial effects of the embodiments of the present application:

[0026] In an embodiment of the present application, by making the first bracket and the second bracket detachably connected to the first inner wall and the second inner wall of the box body, it is convenient to remove the first bracket and the second bracket that are not connected to the battery module when installing the battery module, so as to reduce the assembly space occupied by the first bracket and the second bracket, so that the space inside the battery box body can be used to install as many battery modules as possible, which helps to arrange more batteries in the battery system space, thereby improving the problem of low space utilization of the battery system. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0028] Figure 1 is a partial cross-sectional view of a battery box provided in an embodiment of the present application;

[0029] Figure 2 It is a partial cross-sectional view of a battery box provided by an embodiment of the present application, in which a first sub-bracket is installed, wherein the second bracket has not yet been installed;

[0030] Figure 3 It is a partial cross-sectional view of a battery box provided with a first support seat inside according to an embodiment of the present application, wherein the first support and the second support have not yet been installed;

[0031] Figure 4 It is a partial cross-sectional view of a battery box provided with a first sub-support seat inside according to an embodiment of the present application, wherein the first support and the second support have not yet been installed;

[0032] Figure 5 is a partial cross-sectional view of another battery box provided in an embodiment of the present application, wherein the first bracket and the second bracket have not yet been installed;

[0033] Figure 6 is a partial cross-sectional view of a battery provided in an embodiment of the present application, which has a layer of battery modules installed therein;

[0034] Figure 7 is a structural schematic diagram of a battery module provided in an embodiment of the present application;

[0035] Figure 8 It is a partial cross-sectional view of a battery with a battery module filled inside provided in an embodiment of the present application.

[0036] Description of reference numerals:

[0037] 1. Box body; 10. Inner bottom wall;

[0038] 2. a first bracket; 21. a first sub-bracket;

[0039] 3. The second bracket;

[0040] 4. First supporting portion; 41. First supporting seat;

[0041] 5. A second supporting portion;

[0042] 6. First bottom bracket;

[0043] 7. Second bottom bracket;

[0044] 8. Battery module; 81. First surface; 82. Second surface; 83. Heat sink;

[0045] 9. Thermal conductive adhesive. DETAILED DESCRIPTION

[0046] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the present application. In addition, it should be understood that the specific implementation methods described herein are only used to illustrate and explain the present application, and are not used to limit the present application.

[0047] In the description of this application, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first" and "second" may explicitly or implicitly include one or more of the features.

[0048] In this application, the word "exemplary" is used to mean "used as an example, illustration, or description." Any embodiment described in this application as "exemplary" is not necessarily to be construed as being preferred or advantageous over other embodiments. The following description is given to enable any technician in the field to implement and use the present application. In the following description, details are listed for the purpose of explanation. It should be understood that a person of ordinary skill in the art can recognize that the present application can be implemented without using these specific details. In other instances, well-known structures and processes will not be elaborated in detail to avoid obscuring the description of the present application with unnecessary details. Therefore, the present application is not intended to be limited to the embodiments shown, but is consistent with the widest scope consistent with the principles and features disclosed in the present application.

[0049] Please refer to Figure 1 , Figure 1It is a partial cross-sectional view of a battery box provided in an embodiment of the present application. The embodiment of the present application provides a battery box, comprising: a box body 1, having an inner bottom wall 10, and a first inner side wall and a second inner side wall connected to the inner bottom wall 10 and arranged opposite to each other. A first bracket 2 is detachably arranged on the first inner side wall and is parallel to the inner bottom wall 10. A second bracket 3 is detachably arranged on the second inner side wall and is aligned with the first bracket 2. Both the first bracket 2 and the second bracket 3 are configured to support a battery module 8.

[0050] It should be noted that the alignment setting in this article means that the distance between the second bracket 3 and the first bracket 2 and the inner bottom wall 10 is the same; or, the distance between the second bracket 3 and the first bracket 2 and the inner bottom wall 10 is the same, and along the direction from one of the first inner side wall and the second inner side wall to the other, the first bracket 2 and the second bracket 3 are aligned with each other.

[0051] In the related art, when installing the battery module, it is usually necessary to first install a fixed frame on the vehicle frame, and then fix the battery module 8 on the fixed frame. In order to facilitate the installation of the battery module 8, a larger installation space needs to be reserved for each battery module 8. After the battery module 8 is assembled, only part of the reserved installation space is used to place the connectors between the battery modules 8, and there is still a lot of space that is not used, resulting in low space utilization of the battery system. In the embodiment of the present application, the first bracket 2 and the second bracket 3 are used to support and fix the battery module 8. The present application makes the first bracket 2 and the second bracket 3 detachably arranged on the first inner side wall and the second inner side wall of the box body 1, respectively, so as to facilitate the installation and fixing of the battery module 8 and the like in the box body 1. On the other hand, when installing the battery module 8, the first bracket 2 and the second bracket 3 that are not connected to the battery module 8 can be removed, reducing the assembly space occupied by the first bracket 2 and the second bracket 3, so that the installation space reserved for each battery module 8 is reduced, thereby reducing the unused space after the battery module 8 is assembled, which helps to make full use of the space in the box 1 to arrange as many battery modules 8 as possible. Specifically, when installing each battery module 8, only the first bracket 2 and the second bracket 3 used to connect with the battery module 8 to be installed at present are connected to the box 1, thereby reducing the impact of the remaining first bracket 2 and the second bracket 3 on the installation of the current battery module 8 (such as blocking the field of vision of the installer, or hindering the installer from using tools to connect the battery module 8 to the bracket) in the case where all the first brackets 2 and the second brackets 3 are pre-installed on the box 1, so that the working space for installing the battery module 8 is increased, thereby helping to make full use of the space in the box 1 to arrange the battery module 8, so that as many battery modules 8 as possible are installed in the battery box, thereby improving the space utilization of the battery box. In addition, the first bracket 2 and the second bracket 3 of the embodiment of the present application are detachably arranged on the first inner wall and the second inner wall of the box body 1, which is also convenient for disassembly and maintenance of the battery.

[0052] In some embodiments, the first bracket 2 may be an integral strip-shaped structure extending along the width direction of the first inner side wall; or, the first bracket 2 may be a plurality of block-shaped structures spaced apart along the width direction of the first inner side wall. The second bracket 3 may be an integral strip-shaped structure extending along the width direction of the second inner side wall; or, the second bracket may be a plurality of block-shaped structures spaced apart along the width direction of the second inner side wall.

[0053] It can be understood that the first bracket 2 and the second bracket 3 can be an integral strip structure or multiple block structures arranged at intervals; or, one of the first bracket 2 and the second bracket 3 is an integral strip structure, and the other is a multiple block structures arranged at intervals.

[0054] For example, please refer to Figure 2 , Figure 2It is a partial cross-sectional view of a battery box provided by an embodiment of the present application, in which a first sub-bracket is installed inside, wherein the second bracket has not yet been installed. In some embodiments of the present application, the first bracket 2 includes a plurality of first sub-brackets 21 spaced apart in a direction parallel to the inner bottom wall 10; and / or the second bracket 3 includes a plurality of second sub-brackets spaced apart in a direction parallel to the inner bottom wall 10, and the second sub-brackets correspond to the first sub-brackets 21 one by one.

[0055] In the embodiment of the present application, the first bracket 2 is defined as a structure including a plurality of first sub-brackets 21 arranged at intervals, which helps to make full use of the space between the plurality of first sub-brackets 21. Specifically, the connectors between the plurality of battery modules 8 in the battery box are placed at the intervals between the first sub-brackets 21, so that the space available for placing the battery modules 8 in the battery box is increased, which helps to make full use of the space in the box body 1 to install as many battery modules 8 as possible, thereby improving the space utilization of the battery box and improving the problem of low space utilization of the battery system. The second bracket 3 includes a plurality of second sub-brackets (not shown in the figure) with similar or identical beneficial effects to the first bracket 2, which will not be repeated here.

[0056] The first bracket 2 and the second bracket 3 are both defined as structures including multiple sub-brackets, so that the space between the first sub-brackets 21 and the space between the second sub-brackets can be utilized, which helps to further improve the space utilization of the battery box. In addition, the specific structure of the first bracket 2 and the second bracket 3 can be selected according to the actual usage scenario. Specifically, only the first bracket 2 includes a plurality of first sub-brackets 21 arranged at intervals, and the second bracket 3 is an integrated strip structure. Alternatively, only the second bracket 3 includes a plurality of second sub-brackets arranged at intervals, and the first bracket 2 is an integrated strip structure. In addition, since the first bracket 2 and the second bracket 3 adjacent to the inner bottom wall 10 will not affect the installation of the battery module 8 and the arrangement of the connector, the first bracket 2 and the second bracket 3 adjacent to the inner bottom wall 10 can be defined as an integrated strip structure. If the strength of the first bracket 2 and the second bracket 3 is considered, the first bracket 2 and the second bracket 3 in the battery box can be defined as an integrated strip structure.

[0057] In some embodiments of the present application, a plurality of first brackets 2 and second brackets 3 are provided in a direction perpendicular to the inner bottom wall 10, and the number of the first brackets 2 is the same as the number of the second brackets 3. Each first bracket 2 is aligned with a second bracket 3.

[0058] In the embodiment of the present application, a plurality of first brackets 2 and second brackets 3 are arranged in the battery box, so that a plurality of battery modules 8 can be installed in the battery box, which helps to make full use of the space in the battery box to install as many battery modules 8 as possible, thereby improving the problem of low space utilization of the battery system.

[0059] In some embodiments of the present application, in a direction perpendicular to the inner bottom wall 10 , the first sub-brackets 21 are aligned; and / or the second sub-brackets are aligned.

[0060] In some embodiments of the present application, the first bracket 2 is defined as a structure including a plurality of first sub-brackets 21. When a plurality of first brackets 2 are provided in the box body 1, there are multiple ways of setting the plurality of first sub-brackets 21 included in each first bracket 2. In this embodiment, by aligning the first sub-brackets 21 included in the plurality of first brackets 2 in the direction perpendicular to the inner bottom wall 10, the space between the plurality of first sub-brackets 21 is connected into a larger space, which is convenient for making full use of the space, for example, the connectors between the battery modules 8 are arranged in the space. Therefore, the arrangement of the first sub-bracket 21 and / or the second sub-bracket in the direction perpendicular to the inner bottom wall 10 provided in the embodiment of the present application helps to make full use of the space in the battery box, so that as many battery modules 8 as possible are installed in the battery box to improve the space utilization of the battery system. In addition, the first sub-brackets 21 included in the plurality of first brackets 2 in the direction perpendicular to the inner bottom wall 10 are aligned, so that the bending and stretching of the connectors between the battery modules 8 are reduced, which helps to improve the problem of the connectors being easy to loosen. The beneficial effects of the arrangement of the second sub-bracket included in the second bracket 3 are similar or the same as those of the first sub-bracket 21 , and are not described in detail here.

[0061] Please refer to Figure 3 , Figure 3 It is a partial cross-sectional view of a battery box provided with a first support seat in an embodiment of the present application, wherein the first bracket and the second bracket have not yet been installed. In some embodiments of the present application, the battery box further includes: a first support portion 4, which is provided on the first inner side wall and connected to the first bracket 2; and / or a second support portion 5, which is provided on the second inner side wall and connected to the second bracket 3.

[0062] The first bracket 2 and the second bracket 3 are detachably arranged on the first inner side wall and the second inner side wall, respectively, so as to facilitate the installation of the battery module 8 in the battery box. However, when the battery module 8 has a high requirement on the connection strength between the first bracket 2 and the first inner side wall, for example, when the weight of the battery module 8 is large. At this time, the detachable connection between the first bracket 2 and / or the second bracket 3 and the box body 1 of the battery box may fail to meet the strength requirement. Therefore, in some embodiments of the present application, a first support portion 4 is arranged on the first inner side wall of the battery box, and / or a second support portion 5 is arranged on the second inner side wall, so that the first support portion 4 is connected to the first bracket 2, and the second support portion 5 is connected to the second bracket 3, and the first support portion 4 and / or the second support portion 5 are arranged as one piece with the box body 1, which helps to improve the connection strength between the first bracket 2 and the box body 1 and the connection strength between the second bracket 3 and the box body 1.

[0063] Please refer to Figure 4 , Figure 4 It is a partial cross-sectional view of a battery box provided with a first sub-support seat provided in an embodiment of the present application, wherein the first bracket and the second bracket have not yet been installed. In some embodiments of the present application, the first support portion 4 includes a plurality of first support seats 41 spaced apart in a direction parallel to the inner bottom wall 10, and the number of the first support seats 41 is the same as the number of the first sub-supports 21; and / or the second support portion 5 includes a plurality of second support seats spaced apart in a direction parallel to the inner bottom wall 10, and the number of the second support seats is the same as the number of the second sub-supports.

[0064] In the embodiment of the present application, by setting the first support portion 4 to include a structure including a plurality of first support seats 41 arranged at intervals, the internal space of the box 1 occupied by the first support portion 4 is reduced, so that the space for setting the battery module 8 and the connecting member is increased, so that as many battery modules 8 as possible can be installed in the battery box, thereby improving the utilization rate of the battery box space. Further, the number of the first support seats 41 is the same as the number of the first sub-brackets 21, which can avoid the situation where the first sub-bracket 21 is not connected to the box 1, thereby helping to ensure the connection strength between the battery module 8 and the box 1, and at the same time, it can also avoid the situation where the vacant first support seat 41 (i.e., the first support seat 41 not connected to the first sub-bracket 21) affects the assembly of the battery module 8 and the connecting member, and avoid the situation where the vacant first support seat 41 occupies the internal space of the box 1, so that the utilization rate of the battery box space is improved. The beneficial effect of the second support portion 5 including a plurality of second support seats (not shown in the figure) is similar or the same as that of the first support portion 4, which will not be repeated here.

[0065] Defining the first support portion 4 and the second support portion 5 as a structure including a plurality of support seats helps to further improve the space utilization of the battery box.

[0066] In some embodiments, in a direction perpendicular to the inner bottom wall 10 , the cross-sectional shape of the first supporting portion 4 and / or the second supporting portion 5 is a right-angled trapezoid.

[0067] Please refer to Figure 3 and Figure 4, the cross-sectional shapes of the first support portion 4 and the first support seat 41 are both right-angled trapezoids, wherein the lower base of the right-angled trapezoid is in contact with the first inner side wall, the upper base of the right-angled trapezoid is away from the first inner side wall, and the waist of the right-angled trapezoid, which is 90° with the upper base and the lower base, is away from the inner bottom wall 10. In the embodiment of the present application, the cross-sectional shapes of the first support portion 4 and the first support seat 41 are right-angled trapezoids in the direction perpendicular to the inner bottom wall 10, which helps to increase the connection strength between the first support portion 4 and the box body 1. The specific shapes and beneficial effects of the second support portion 5 and the second support seat are similar or the same as those of the first support portion 4 and the second support seat, and will not be repeated here.

[0068] Please refer to Figure 5 , Figure 5 : is a partial cross-sectional view of another battery box provided by an embodiment of the present application, wherein the first bracket and the second bracket have not yet been installed. In some embodiments of the present application, the battery box further includes: a first bottom bracket 6, which is arranged at the connection between the inner bottom wall 10 and the first inner side wall; a second bottom bracket 7, which is arranged at the connection between the inner bottom wall 10 and the second inner side wall and is aligned with the first bottom bracket 6.

[0069] In this embodiment, since the first bottom bracket 6 and the second bottom bracket 7 are located at the bottom inside the box body 1, the first bottom bracket 6 and the second bottom bracket 7 will not affect the installation of the battery module 8, and the first bottom bracket 6 and the second bottom bracket 7 are integrated with the box body 1, and there is no looseness between the first bottom bracket 6 and the second bottom bracket 7 and the box body 1, which helps to increase the connection strength between the box body 1 and the battery module 8.

[0070] On the other hand, please refer to Figure 6 , Figure 6 The embodiment of the present application provides a battery, comprising the battery box and a battery module 8; the two ends of the battery module 8 are connected to the first bracket 2 and the second bracket 3 respectively.

[0071] In this embodiment, the battery module 8 is arranged in the box body 1, and the two ends are connected to the first bracket 2 and the second bracket 3 respectively, wherein the first bracket 2 and the second bracket 3 are detachably arranged on the first inner side wall and the second inner side wall respectively, which is convenient for installing and fixing the battery module 8 and the like in the box body 1 on the one hand, and helps to make full use of the space in the box body 1 to arrange the battery module 8 on the other hand. Specifically, when installing each battery module 8, only the first bracket 2 and the second bracket 3 used to connect with the battery module 8 to be installed at present are connected to the box body 1, thereby reducing the influence of the remaining first brackets 2 and the second brackets 3 on the installation of the current battery module 8 in the case where all the first brackets 2 and the second brackets 3 are pre-installed on the box body 1, so that the working space for installing the battery module 8 is increased, thereby helping to make full use of the space in the box body 1 to arrange the battery module 8, so that as many battery modules 8 as possible are installed in the battery box, thereby improving the space utilization rate of the battery box.

[0072] Please refer to Figure 7 , Figure 7 : is a schematic diagram of the structure of a battery module provided by an embodiment of the present application. In some embodiments of the present application, the battery module 8 has a first surface 81, a second surface 82, a third surface and a fourth surface connected end to end in sequence, and the extension surfaces of the first surface 81, the second surface 82, the third surface and the fourth surface intersect with the first inner side wall and the second inner side wall; the battery also includes a heat sink 83, which is disposed on at least one of the first surface 81, the second surface 82, the third surface and the fourth surface.

[0073] In this embodiment, heat sinks 83 are provided on the first surface 81, the second surface 82, the third surface (not shown in the figure) and the fourth surface (not shown in the figure) of the battery module 8, which helps to dissipate the heat of the battery module 8 and reduce the temperature of the battery module 8. The heat sinks 83 are provided between the battery modules 8 to further help to evenly distribute the heat between the battery modules 8 and improve the situation where heat accumulation is prone to occur between the battery modules 8, thereby improving the battery charging and discharging performance and life.

[0074] Please refer to Figure 6 and Figure 8 , Figure 8 1 is a partial cross-sectional view of a battery filled with battery modules provided in an embodiment of the present application. In some embodiments of the present application, the battery includes a plurality of battery modules 8, the number of battery modules 8 corresponds to the number of first brackets 2 and the number of second brackets 3, both ends of each battery module 8 are connected to a first bracket 2 and a second bracket 3, and the battery also includes a thermal conductive adhesive 9, which is disposed between two adjacent battery modules 8 and contacts the two battery modules 8 respectively.

[0075] The battery provided in some embodiments of the present application includes a plurality of battery modules 8. The thermal conductive adhesive 9 provided between the plurality of battery modules 8 helps to even out the heat between the battery modules 8 and improve the situation where heat is easily accumulated between the battery modules 8. At the same time, the thermal conductive adhesive bonds the plurality of battery modules 8 into a whole, which helps to improve the overall rigidity of the battery. The thermal conductive adhesive is used to bond the plurality of battery modules 8 in the battery box, so that the space between the battery modules 8 in the depth direction of the battery box is fully utilized, further improving the space utilization rate of the battery box.

[0076] In some embodiments of the present application, the battery further includes: a connector connected to the plurality of battery modules 8 and disposed between the first sub-bracket 21 and / or the second sub-bracket of the battery box.

[0077] In this embodiment, the connectors between the battery modules 8 are arranged between the first sub-brackets 21 and / or between the second sub-brackets, which helps to fully utilize the space between the first sub-brackets 21 and / or the second sub-brackets, thereby improving the space utilization of the battery box.

[0078] Exemplarily, in one embodiment of the present application, a plurality of first brackets 2 and second brackets 3 are arranged in a direction perpendicular to the inner bottom wall 10, wherein a first support portion 4 is arranged on the first inner side wall, and the first support portion 4 includes a plurality of first support seats 41 arranged at intervals, a plurality of first sub-brackets 21 arranged at intervals included in the first bracket 2 are connected one by one with the first support seats 41, the second bracket 3 is detachably connected to the second inner side wall, the second bracket 3 includes a plurality of second sub-brackets arranged at intervals, the two ends of the battery module 8 are respectively connected to the first bracket 2 and the second bracket 3, the connecting piece between the battery modules 8 is arranged at the interval between the first sub-brackets 21, the second sub-bracket is parallel to the direction of the inner bottom wall 10, the size of the second sub-bracket is smaller than the size of the first sub-bracket 21, and the first sub-bracket 21 is connected to the first support seat 41, so that the distance between the battery module 8 and the second inner side wall is small, while the distance between the first inner side walls is large, so the connecting piece between the battery modules 8 is arranged between the first sub-brackets 21, which helps to make full use of the space between the first sub-brackets 21, so that the space utilization rate of the battery box is improved.

[0079] The above is a detailed introduction to a battery box and a battery provided in the embodiments of the present application. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea. At the same time, for technical personnel in this field, according to the idea of ​​the present application, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A battery box, characterized in that: include: The box body has an inner bottom wall, and a first inner side wall and a second inner side wall connected to and opposite to the inner bottom wall; A first bracket is detachably disposed on the first inner side wall and is parallel to the inner bottom wall; A second bracket is detachably disposed on the second inner side wall and aligned with the first bracket; The first bracket and the second bracket are both configured to support a battery module.

2. The battery box according to claim 1, characterized in that: The first bracket includes a plurality of first sub-brackets arranged at intervals along a direction parallel to the inner bottom wall; and / or the second bracket includes a plurality of second sub-brackets arranged at intervals along a direction parallel to the inner bottom wall, and the second sub-brackets correspond one-to-one to the first sub-brackets.

3. The battery box according to claim 2, characterized in that: In a direction perpendicular to the inner bottom wall, a plurality of the first brackets and the second brackets are arranged, and the number of the first brackets is the same as the number of the second brackets.

4. The battery box according to claim 3, characterized in that: In a direction perpendicular to the inner bottom wall, the first sub-supports are aligned; and / or the second sub-supports are aligned.

5. The battery box according to claim 2, characterized in that: The battery box also includes: A first supporting portion is disposed on the first inner side wall and connected to the first bracket; and / or a second supporting portion is disposed on the second inner side wall and connected to the second bracket.

6. The battery box according to claim 5, characterized in that: The first support portion includes a plurality of first support seats arranged at intervals along a direction parallel to the inner bottom wall, and the number of the first support seats is the same as the number of the first sub-brackets; and / or the second support portion includes a plurality of second support seats arranged at intervals along a direction parallel to the inner bottom wall, and the number of the second support seats is the same as the number of the second sub-brackets.

7. The battery box according to claim 1, characterized in that: The battery box also includes: A first bottom bracket, disposed at the connection between the inner bottom wall and the first inner side wall; The second bottom bracket is arranged at the connection between the inner bottom wall and the second inner side wall and is aligned with the first bottom bracket.

8. A battery, comprising the battery box according to any one of claims 1 to 7, characterized in that: Also includes battery modules; Two ends of the battery module are connected to the first bracket and the second bracket respectively.

9. The battery according to claim 8, characterized in that The battery module has a first surface, a second surface, a third surface and a fourth surface connected end to end in sequence, and the extension surfaces of the first surface, the second surface, the third surface and the fourth surface intersect with the first inner side wall and the second inner side wall; The battery further includes a heat dissipation plate disposed on at least one of the first surface, the second surface, the third surface, and the fourth surface.

10. The battery according to claim 8, characterized in that The battery includes a plurality of battery modules, the number of the battery modules corresponds to the number of the first brackets and the number of the second brackets, both ends of each battery module are connected to a first bracket and a second bracket, and the battery also includes thermal conductive adhesive, which is arranged between two adjacent battery modules and contacts the two battery modules respectively.

11. The battery according to claim 10, characterized in that The battery also includes: The connecting member is connected to the plurality of battery modules and is arranged between the first sub-bracket and / or the second sub-bracket of the battery box.

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